The Product which u see on Beside is iPhone 4s Sim tray.
iPhone 4s Sim trayis a high quality and affordable repair part.
If your iPhone 4S having issues with sim tray or damaged you can replace it with below Product.
iPhone 4s Sim tray is designed to work perfectly with your iPhone 4S.
The image below use to present product is just for reference
actual product will be different from image.